Curved Edge Patents (Class 30/49)
  • Patent number: 5604983
    Abstract: A safety razor system includes a body member for attachment to a razor handle having a shell structure and an elongated blade mounted on the shell structure of the body member. The blade is arcuate along its lengthwise directions and has a skin contacting surface with a plurality of apertures formed therein, the perimeter of each aperture serving as a cutting edge. The blade is mounted on the body with the skin contacting surface entirely offset from the body member and is attached to a handle for pivotal movement in the widthwise direction about a pivot center offset from the skin contacting surface in the direction of contact.
    Type: Grant
    Filed: March 29, 1995
    Date of Patent: February 25, 1997
    Assignee: The Gillette Company
    Inventors: Graham J. Simms, Daniel B. Lazarchik
  • Patent number: 5490329
    Abstract: A shaving system of the wet shave type includes support structure and blade structure secured to the support structure. The blade structure has an aperture with an annular sharpened shaving edge that is defined by main facet portions that converge at an angle of less than 40.degree. and supplemental facet portions that are extensions of the main facet portions and converge at an included angle of less than 60.degree. to define an annular ultimate tip portion. The annular ultimate tip of the sharpened edge defines a shaving plane and the bisector of the included angle defined by the supplemental facets is disposed at an angle (shaving angle) in the range of 15.degree.-35.degree. to the shaving plane.
    Type: Grant
    Filed: May 17, 1994
    Date of Patent: February 13, 1996
    Assignee: The Gillette Company
    Inventors: Henryk J. Chylinski, Chester F. Jacobson, Timothy M. Salisbury, Frederick R. Borden
  • Patent number: 5463813
    Abstract: A dry shaver includes a housing mounting thereon a cutter head which comprises a perforated outer shearing foil and an inner cutter. The outer shearing foil has a first axis along which it is arcuately curved. The inner cutter has a longitudinal axis along which it is arcuately curved to have an arcuate contour in conformity with the outer shearing foil. Projecting from the housing is a drive arm which is connected to reciprocate the inner cutter along a reciprocation path parallel to the first axis in hair shearing engagement with the outer shearing foil so that the inner cutter moves to and fro between two end positions spaced along the reciprocation path and defining therebetween a central position. A spring is provided to floatingly support the inner cutter to the drive arm for biasing the inner cutter against the outer shearing foil. The inner cutter is configured to satisfy the following relation that 0.
    Type: Grant
    Filed: November 8, 1993
    Date of Patent: November 7, 1995
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Kiyotaka Otsuka, Jyuzaemon Iwasaki
  • Patent number: 5388332
    Abstract: In or for use in a razor blade unit having two parallel blades (14) and an interposed spacer (15), a flexible spacer having spaced transverse ribs with the ribs on one side offset from the ribs on the other side.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: February 14, 1995
    Assignee: The Gillette Company
    Inventor: Brian Oldroyd
  • Patent number: 5341571
    Abstract: a movable blade cartridge including a platform member having a blade seat and a guard member. The guard member is located of forward and parallel to the blade seat so as to form a longitudinal slot between the blade seat and the guard member. A primary blade which is disposed on the blade seat such that the cutting edge of the blade is located rearwardly of the guard member. A substantial portion of the primary blade extends into the slot formed between the guard member and the blade seat such that the blade is flexible into the slot. A spacer is located on the upper surface of the primary blade. The spacer comprises a rear portion which functions to separate the primary blade and a secondary blade, as well as a forward portion which extends from the rear portion and functions to prevent upward movement of the primary blade, and create an opening beneath the forward portion of the spacer and the lower surface of the secondary blade.
    Type: Grant
    Filed: April 16, 1993
    Date of Patent: August 30, 1994
    Assignee: American Safety Razor Company
    Inventor: Frank H. Prochaska
  • Patent number: 5276967
    Abstract: A flexible, twin-blade razor unit employing a corrugated spacer for providing improved cutting effectiveness. The corrugations increase the rigidity of the blades, which, in turn, decreases the amplitude of any vibration introduced into the blades.
    Type: Grant
    Filed: April 29, 1993
    Date of Patent: January 11, 1994
    Assignee: Warner-Lambert Company
    Inventors: Frank A. Ferraro, Vincent C. Motta
  • Patent number: 5208982
    Abstract: This invention provides a device to shave concave areas utilizing a blade bent into an arc where the blade sharpened edge is mounted on a cylindrical or conical surface in a convex shape. In one embodiment the lead in surface is a spherical segment with grooves to guide hairs and the blade edge is mounted projecting slightly over a slot located at the intersection between the cylindrical and the spherical surfaces. This method allows nick free shaving of concavities.
    Type: Grant
    Filed: October 6, 1992
    Date of Patent: May 11, 1993
    Inventor: Gerald A. Ferruzza, Jr.
  • Patent number: 5201253
    Abstract: A shaving system that includes a holder and a blade meber secured to the holder. The blade member has an aperture that defines an annular sharpened edge with main facet portions that converge at an angle of less than 30.degree. and supplemental facet portions that are extensions of the main facet portions and define an ultimate tip defining portion that has an included angle of less than 30.degree.. The supplemental facet portions are offset in the same direction from the main facet portions each at an angle of less than 175.degree., the outer main facet portion defines a shaving plane, the ultimate tip is disposed above the shaving plane less than 0.1 millimeter, and the bisector of the included angle defined by the supplementary facets is disposed at an angle to the shaving plane in the range of 15.degree.-35.degree..
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: April 13, 1993
    Assignee: The Gillette Company
    Inventors: Daniel B. Lazarchik, Henryk J. Chylinski
  • Patent number: 5199173
    Abstract: A safety razor which conforms to both concave and convex body surfaces and has a handle and a curved rotatable cartridge. Shaving blades are positioned on both sides of the curved cartridge, thus, both concave and convex accurate cutting edges are obtained in a single compact cartridge. The concave surface is used when shaving convex body surfaces. Rotating the cartridge 180 degrees exposes the convex cutting surface for shaving concave body surfaces. The cartridge is rotatably mounted to the handle and is held in either concave or convex shaving positions with detents. When the alternate shaving position is desired, the cartridge is rotated 180 degrees, either manually or remotely using a push button device within the handle, which is also disclosed. The correct angular relationship of the handle to the cutting surface of the cartridge is set and maintained for both concave and convex settings by means of the detents since the amount of rotation between the two shaving settings is 180 degrees.
    Type: Grant
    Filed: October 17, 1991
    Date of Patent: April 6, 1993
    Assignee: Hegemann Research Corporation
    Inventors: Kenneth J. Hegemann, Rebecca M. Inzunza
  • Patent number: 5182858
    Abstract: A razor mechanism particularly suited for use with a flexible cartridge having at least one attachment member moveable in a direction substantially perpendicular to the longitudinal axis of the razor mechanism in response to the flexing of the razor cartridge during shaving.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: February 2, 1993
    Assignee: Warner-Lambert Company
    Inventor: Evan N. Chen
  • Patent number: 5157834
    Abstract: A razor mechanism particularly suited for use with a flexible cartridge having at least one attachment member moveable in a direction toward the longitudinal axis of the razor mechanism in response to the flexing of the razor cartridge during shaving and a cartridge support disposed in contact with the cartridge for assisting the cartridge in returning to a substantially linear configuration.
    Type: Grant
    Filed: April 10, 1990
    Date of Patent: October 27, 1992
    Assignee: Warner-Lambert Company
    Inventors: Evan N. Chen, Frank A. Ferraro
  • Patent number: 5153992
    Abstract: A safety razor in which the blade has a plurality of sharp-edged apertures for shaving and also a sharpened rectilinear edge for trimming. Provision is made for effecting displacement of the blade relative to the razor handle so that the trimming edge which is normally in an inoperative position can be moved into an operative position. The blade is held in an arched position so that the aforesaid movement is of a rocking nature.
    Type: Grant
    Filed: May 16, 1991
    Date of Patent: October 13, 1992
    Assignee: The Gillette Company
    Inventors: Frank E. Brown, John Taylor, David J. Wilks
  • Patent number: 5092042
    Abstract: A shaving system includes body structure with guide structure and blade structure carried by the body structure. The blade structure has a cutting edge extending along the length of the body structure. A movable guard member of sheet material is carried by the body structure forwardly of the cutting edge of the blade structure and has a vertically extending rear wall portion, a sloped surface portion that extends forwardly in cantilever relation from the rear wall portion and that includes skin-tensioning surface structure, and integral guide portions disposed in the guide structure. The movable guard member is biased for dynamic movement as guided by the guide structure in the course of a shaving stroke.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: March 3, 1992
    Assignee: The Gillette Company
    Inventors: Gary R. Miller, Chester F. Jacobson
  • Patent number: 5092210
    Abstract: A disposable blade holder for use with an apparatus, such as a microtome which is employed in cutting thin sections of tissue and other materials for microscope viewing. The blade holder is removably mountable in a microtome and secured therein by clamps. The holder comprises a cover plate and a base with a pair of small steps slightly greater in height than the thickness of a disposable blade. When a portion of the cover plate, disposed inwardly of the steps and otherwise suspended between them, is subjected to a sufficiently large force directed toward the base, the cover plate is deflected slightly and presses against the blade holding it firmly. The greatest deflection of the cover plate occurs in its mid-section so that the cover plate comes into contact with the blade first before it can touch the remainder of the base. The same clamps used to secure the blade holder itself to the microtome also serve to keep the cover pressed against the blade.
    Type: Grant
    Filed: January 10, 1990
    Date of Patent: March 3, 1992
    Inventor: Klaus Dern
  • Patent number: 5088195
    Abstract: A shaving system that includes a holder and a blade member secured to the holder. The blade member has an aperture that defines an annular sharpened edge with main facet portions that converge at an angle of less than 30.degree. and supplemental facet portions that are extensions of the main facet portions and define an ultimate tip defining portion that has an included angle of less than 30.degree.. The supplemental facet poritons are offset in the same direction from the main facet portions each at an angle of less than 175.degree., the outer main facet portion defines a shaving plane, the ultimate tip is disposed above the shaving plane less than 0.1 millimeter, and the bisector of the included angle defined by the supplementary facets is disposed at an angle to the shaving plane in the range of 15.degree.-35.degree..
    Type: Grant
    Filed: July 30, 1990
    Date of Patent: February 18, 1992
    Inventors: Daniel B. Lazarshik, Henryk J. Chylinski
  • Patent number: 5060377
    Abstract: The invention relates to a shaver head for a wet shaver in which a single or double razor blade is arranged in a plastic housing including a front guide strip. The plastic housing has perforations both on the underside and at the rear which are respectively connected to an open region of the plastic housing at the cutting edge of the razor blade.
    Type: Grant
    Filed: August 15, 1990
    Date of Patent: October 29, 1991
    Assignee: Wilkinson Sword GmbH
    Inventors: Wolfgang Althaus, Michael Schwarz
  • Patent number: 5031316
    Abstract: A razor including an elongated handle and a blade unit at one end thereof and extending transversely thereto. The blade unit is flexibly mounted on the handle and is anchored toward each end to permit the center region to bow inwardly and outwardly.
    Type: Grant
    Filed: January 30, 1990
    Date of Patent: July 16, 1991
    Assignee: The Gillette Company
    Inventor: Brian Oldroyd
  • Patent number: 5031318
    Abstract: A hand-held razor of the wet-shave type includes a thin flexible foil member with a plurality of apertures, each of which has opposed sharpened shaving edge portions. A displacing mechanism cyclically displaces the foil along a predetermined path such that the velocity of the opposed edge portions caused by the mechanism is substantially greater than the speed of motion caused by normal shaving stroke manipulation. The amplitude of each displacement cycle is greater than the width of a beard hair and less than the distance between the oppoosed edge portions.
    Type: Grant
    Filed: March 22, 1990
    Date of Patent: July 16, 1991
    Assignee: The Gillette Company
    Inventors: Robert L. Brown, John D. Galligan
  • Patent number: 5031317
    Abstract: A razor having a base member, spring fingers extending from the base member, a plurality of razor blades, each of the razor blades having a generally tubular wall defining a central aperture, each of the razor blades having an integrally formed flange on a first end of the tubular wall, a free edge of each of the flanges comprising an annular cutting edge, a second end of the tubular wall having therein a plurality of the spring fingers extending into the aperture, such that the spring fingers within the tubular walls permit multi-directional movement of the razor blades responsive to pressures encountered during shaving operations.
    Type: Grant
    Filed: September 19, 1990
    Date of Patent: July 16, 1991
    Assignee: The Gillette Co.
    Inventor: Chester F. Jacobson
  • Patent number: 5003694
    Abstract: A flexible razor head is provided which features a flexible cap and seat. Corrugations, having portions of different widths, present in the seat enhance the ability of the seat to lengthen in response to shaving forces.
    Type: Grant
    Filed: April 10, 1990
    Date of Patent: April 2, 1991
    Assignee: Warner-Lambert Company
    Inventor: Evan N. Chen
  • Patent number: 4993154
    Abstract: A shaving apparatus is described that has a handle, a bifurcated expansion means with one end connected to the handle and with another end attached to a razor head containing at least one blade and at least one spacer that are retained in a base in such a manner so as to allow the blades and spacers to move longitudinally as the base, blades and spacers are moved from a convex curve through a straight configuration to a concave curve to accommodate the various surfaces requiring shaving on the body. There is an adjustment means on the apparatus that allows the user to select the curvature of the blade desired without visually referencing the apparatus. There is a contraction means to enhance the movement of the blades from the expanded position of the concave configuration to the retracted position of the convex configuration.
    Type: Grant
    Filed: March 1, 1990
    Date of Patent: February 19, 1991
    Inventor: Allan Radcliffe
  • Patent number: 4993153
    Abstract: A multiple blade razor in which a plurality of blades are positioned functionally perpendicular to radials extending away from the longitudinal center of a handle such that as a particular blade or set of blades becomes dull, the handle can be rotated around its longitudinal axis allowing the user to select a previously non-functionally a new blade or set of blades. Additionally, the handle of such a multiple blade razor includes a stable base of sufficient size and shape allowing the razor to be placed in a standing or upright position.
    Type: Grant
    Filed: October 27, 1989
    Date of Patent: February 19, 1991
    Inventor: James G. Henry
  • Patent number: 4984365
    Abstract: A safety razor has a thin flexible metal foil member with a plurality of apertures, and an edge of each aperture is sharpened to define a shaving edge. The foil member is disposed on support surface structure and thin, flexible protective sheet structure with a skin-engaging surface extends about the perimeter of the metal foil member and is secured in overlying relation to the support surface and to the foil member with the apertures of the foil member exposed in shaving relation immediately adjacent and surrounded by the skin engaging surface of the protective sheet structure.
    Type: Grant
    Filed: May 4, 1990
    Date of Patent: January 15, 1991
    Assignee: The Gillette Company
    Inventors: Elizabeth C. Leonard, Jill M. Shurtleff
  • Patent number: 4979298
    Abstract: A shaving system of the wet shave type includes a support member that has a skin engaging surface in which a plurality of spaced apertures are defined. A blade unit has a generally tubular upstanding body portion of predetermined height that defines a central aperture, an integral, inwardly facing flange at one end that has a continuous sharpened shaving edge, and integral outwardly extending flange structure adjacent the opposite end of the tubular body. Depending latch structure is formed integrally with the support member and aligned with each aperture, and integral support structure disposed between the latch structure and the skin engaging surface receives and guides the body portions of the blade units with the latch structure engaging the outwardly extending flange structures of the blade units to secure the blade units in the support member.
    Type: Grant
    Filed: April 10, 1990
    Date of Patent: December 25, 1990
    Assignee: The Gillette Company
    Inventor: Richard S. Pesiri
  • Patent number: 4977670
    Abstract: The shaving implement comprises a housing having a plurality of apertures through a shaving surface, each aperture containing a razor assemblage. Each assemblage includes a soap bar guard and a razor blade connected to one another and mounted for angular and linear floating movement in the housing on a resilient pad. The soap bar guard extends beyond the periphery of the cutting edge of the blade and defines an annular opening for receiving debris from the shaving action. The razor blade is circular and may be flat, dished or concave or have an annular planar margin with a cup-shaped depression so that the connection between the blade and guard lies below the plane containing the razor edge.
    Type: Grant
    Filed: December 18, 1989
    Date of Patent: December 18, 1990
    Assignee: American Safety Razor Company
    Inventor: Clemens A. Iten
  • Patent number: 4976028
    Abstract: According to this invention a flexible razor head is provided which features a flexible cap and blade support portion with the blade support portion featuring a segmented guard bar with the spaces separating the segment correlating to the spaces or areas of reduced thickness in the cap. Corrugations present in the blade support portions enable the blade support portion to lengthen in response to shaving forces.
    Type: Grant
    Filed: May 18, 1989
    Date of Patent: December 11, 1990
    Assignee: Warner-Lambert Company
    Inventor: Evan N. Chen
  • Patent number: 4976030
    Abstract: An apparatus including a cylindrical longitudinally aligned handle including a cutting head pivotally mounted at an upper end thereof onto a reduced shank of the handle to permit spaced parallel alignment overlying the handle, wherein the cutting head includes an arcuate upper surface with coextensive cutting edges mounted adjacent the bottom surface of the cutting head. An abutment bar is pivotally mounted to a bottom surface of the cutting head limiting penetration of the cutting head within a nostril cavity of an individual utilizing the organization.
    Type: Grant
    Filed: February 28, 1990
    Date of Patent: December 11, 1990
    Inventor: Alfred J. Boyd
  • Patent number: 4964214
    Abstract: A safety razor comprises one or more blade members presenting a plurality of cutting edges, and a holder of readily deformable material surrounding the blade member (or members). The edges being displaceable, relative to each other, to follow local deformation of the material.
    Type: Grant
    Filed: June 23, 1989
    Date of Patent: October 23, 1990
    Assignee: The Gillette Company
    Inventors: Norman C. Welsh, Oliver D. Oglesby
  • Patent number: 4961262
    Abstract: An eyebrow shaving apparatus comprised of an elongate handle having at least one blade and preferably a pair of blades mounted on a flat portion of the handle. The blades are preferably arcuate in shape so as to enable an easy trimming or shaving of a user's eyebrows. The blades have sharp edges facing away from the flat surface of the handle and are arranged so that the entire shaving apparatus can easily be manipulated by the user. Furthermore, the handle is provided with an angularly bent portion so as to enable the user to grasp the handle and easily trim the eybrows while also displacing the user's hands from a line of sight. In this way, a user can carefully and easily munipulate the apparatus while viewing in a mirror. The apparatus is also highly effective and relatively safe in use.
    Type: Grant
    Filed: June 5, 1989
    Date of Patent: October 9, 1990
    Inventor: Virginia M. Lawrence
  • Patent number: 4942662
    Abstract: The safety razor has an axial control rod that may have three detenting positions in the handle to define the movement up or down of the rod which arcuately bends at least one razor blade and a razor blade support plate in which the razor blade or blades are placed longitudinally into a convex curve, a straight blade or a concave curve providing a choice of arcuate cutting edges for a smooth shave over irregular surfaces of the portions of the body being shaved.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: July 24, 1990
    Inventor: Allan F. Radcliffe
  • Patent number: 4926553
    Abstract: A razor for trimming and shaping of beards, mustaches, sideburns and the like is disclosed. The razor comprises an elongated handle, a tapered offset neck on one end of the handle and a razor head pivotally attached to the neck by a ball and socket joint interposed therebetween. A pivot lock locks the razor head in a desired attitude with respect to the handle and is controllable from the neck of the razor. The razor head carries a blade having opposed arcuate cutting edges, marginal edges of which extend from opposed arcuate surfaces of the razor head. The ball of the ball and socket is a center-cut ball presenting a path therethrough. The pivot lock is slidable into the center path of the ball to expand the ball, thus, locking the razor head in a fixed attitude to the handle of the razor.
    Type: Grant
    Filed: December 12, 1988
    Date of Patent: May 22, 1990
    Assignees: Michael Miskin, William Bamford
    Inventors: Michael Miskin, William Bamford, Micheal D. Lake
  • Patent number: 4916816
    Abstract: A hand held device for maintaining a double edged razor blade in a curved position. The device includes a handle member having a razor blade retaining channel at one end and a finger grip at the other. A malleable metal razor blade support protruding from below the razor blade retainer end is adapted for threading through the central apertures of a conventional double edged razor blade. The malleable metal blade support is then bent to maintain the cutting edges of the razor in a curved position.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: April 17, 1990
    Inventor: Scott D. Richman
  • Patent number: 4893641
    Abstract: Disclosed is a method for shaving hairs from the surface of the skin with a razor in the form of flexible razor blade fixed to a flexible support member by manually manipulating said razor comprising pressing the blade against the skin while moving said blade over the skin, applying said pressure to the back side of the support member by contact with one or the other of the thumb and fingers of the manipulator, and using the pressure for flexing the blade to follow the changing contour of the surface being shaved.
    Type: Grant
    Filed: May 5, 1989
    Date of Patent: January 16, 1990
    Inventor: Edward Strickland
  • Patent number: 4875288
    Abstract: A tubular upstanding wall of a predetermined height and defining a central aperture has an integrally formed, inwardly facing flange on its upper end, and an integrally formed, outwardly facing flange on its lower end. The inwardly facing flange has a sharpened cutting edge thereby forming a razor blade. One or more razor blades are positioned through apertures in a top member and the outwardly facing flange cooperates with the lower face of the top member to control the vertical position of each razor blade.
    Type: Grant
    Filed: September 2, 1987
    Date of Patent: October 24, 1989
    Assignee: The Gillette Company
    Inventors: Robert A. Trotta, Jeffrey C. Cerier
  • Patent number: 4854043
    Abstract: According to this invention a flexible razor head is provided which features a flexible cap and blade support portion with the blade support portion featuring a segmented guard bar with the spaces separating the segment correlating to the spaces or areas of reduced thickness in the cap. Corrugations present in the blade support portions enable the blade support portion to lengthen in response to shaving forces.
    Type: Grant
    Filed: October 30, 1987
    Date of Patent: August 8, 1989
    Assignee: Warner-Lambert Company
    Inventor: Evan N. Chen
  • Patent number: 4845848
    Abstract: This invention is concerned with the mounting of a flexible razor blade on a flexible holder such that the blade may be flexed about an arc having a radius as small as 1/8" or smaller to permit the blade to flow over protrusions or be flexed to shave through dimpled areas of the skin being shaved. The razor is useful for shaving over the jaw bone or shin bone areas for example without cutting the skin and may be pressed by the fingers of the user to delicately shave most any contoured area found on the normal skin of a human being.
    Type: Grant
    Filed: March 23, 1988
    Date of Patent: July 11, 1989
    Inventor: Edward Strickland
  • Patent number: 4807360
    Abstract: A plurality of individual thin-walled generally disk-shaped blades are resiliently mounted in an elastomeric pad. The elastomeric pad, with its individually mounted blades, is disposed over a flexible sponge-like member. The shaving device is flexible and maintains maximum skin contact regardless of the contour of the area being shaved by providing that each individual blade is independently movable with respect to the other blades.
    Type: Grant
    Filed: September 2, 1987
    Date of Patent: February 28, 1989
    Assignee: The Gillette Company
    Inventors: Jeffrey C. Cerier, Robert A. Trotta, Jill M. Shurtleff
  • Patent number: 4782590
    Abstract: A trimmer for eyebrows and other facial hair has two discrete, relatively thin blade segments held by a thermoplastic handgrip. The handgrip is formed in an angled or "bent" configuration. The exposed, longitudinally extending edges of the blade segments are honed or otherwise sharpened and are used to position one such blade segment to sever selected facial hair while angling the other blade segment away from the face. The handgrip segments holding the blades are rounded or radiused proximate each said blade segment. Multiple blade segments may also be used.
    Type: Grant
    Filed: July 15, 1985
    Date of Patent: November 8, 1988
    Inventor: H. Maie' Pope
  • Patent number: 4720917
    Abstract: A flexible blade contour razor system is provided for shaving rounded or variably contoured shaving surfaces. The system includes a long, flexible blade carried by a plurality of blade-holder housings. Said blade-holder housings are connected by connecting means such as ribs, resilient foam, soft rubber or spring means to a handle.Hinges generally connect each blade-holder housing to an adjacent blade-holder housing.Said flexible blade contour razor system is adapted to flex during any single shaving stroke in order to conform to and closely shave any contoured surface of the body. Thus, a uniform, very wide, unbroken shaving swatch is achieved.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: January 26, 1988
    Inventor: Terry S. Solow
  • Patent number: 4651735
    Abstract: A holder for a curette blade having two opposite sides, two opposite lateral edges and a cutting edge extending between the two edges utilizes two arcuate and opposing blade-clamping surfaces mounted for movement toward and away from one another and associated stop pins for abutting the opposite lateral edges of the blade when the blade is held between the blade-clamping surfaces. The blade-clamping surfaces are adapted to bend the blade into the shape of their arcs when the blade-clamping surfaces are moved from an opened condition to a closed condition so that the cutting edge of the blade is bent to an arcuate condition for a cutting or scraping operation. The holder further includes a member for releasably locking the blade-clamping surfaces in their closed condition about a blade.
    Type: Grant
    Filed: June 27, 1985
    Date of Patent: March 24, 1987
    Assignee: Obex Industries, Inc.
    Inventor: Jacob E. Berger
  • Patent number: 4590674
    Abstract: A disposable razor which includes one or more annular blades positioned between a pair of rotatable plates in which the position of the blades can be adjusted by the razor user.
    Type: Grant
    Filed: December 19, 1984
    Date of Patent: May 27, 1986
    Inventor: Frederick R. Harper
  • Patent number: 4516320
    Abstract: A method and apparatus for altering the normal blade geometry of a wet shaving razor in response to aggressive shaving forces, thereby avoiding nicks and cuts that would otherwise occur.
    Type: Grant
    Filed: April 28, 1983
    Date of Patent: May 14, 1985
    Assignee: Warner-Lambert Company
    Inventor: Anthony J. Peleckis
  • Patent number: 4514903
    Abstract: A trimmer for eyebrows and other facial hair has relatively thin blade segments held by a thermoplastic fingergrip in an angled or "bent" configuration. The exposed, longitudinally extending edge of the blade segments are honed or otherwise sharpened and are used to position one such segment to sever selected facial hair while angling the other segments away from the face.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: May 7, 1985
    Inventor: H. Maie' Pope
  • Patent number: 4483068
    Abstract: The invention provides the combination of a razor blade 10 and holder 12 for the razor blade, wherein the cutting edges of the blade are constituted by the periphery of a number of holes 10b in the blade, and the holder is provided with means 13 by which the blade can be picked up from a razor blade dispenser 16, the holder maintaining the picked-up blade in an arched condition for shaving. The dispenser may have at least one compartment in which an unused blade 10 can be retained in an arched condition whereby parallel sides of the blade can be engaged by the holder 12 which increases the flexure of the blade to release it from the compartment.
    Type: Grant
    Filed: November 25, 1981
    Date of Patent: November 20, 1984
    Assignee: Wilkinson Sword Limited
    Inventor: Glynne F. Clifford
  • Patent number: 4459744
    Abstract: A razor blade arrangement is provided, wherein the razor blade is supported for movement between concave and convex configurations. The razor blade is mounted in a cartridge which holds the blade flexed in convex configuration. The blade is so mounted in the cartridge and the cartridge is so mounted on a handle, that the cartridge-blade assembly may be flexed upon an application of a force on the face thereof. The cartridge-blade assembly is detachably mounted on the handle. The blade is mounted in the cartridge so as to permit relative longitudinal displacement between the blade and cartridge. This movement is afforded by means of providing elongated holes in the blade, which are engaged by pins or pegs forming part of the cartridge. The method of the invention comprises flexing a razor blade between convex and concave shapes in correspondence with the surface to be shaved. The blade is actually flexible in the order of magnitude of about one-eighth of an inch.
    Type: Grant
    Filed: February 4, 1982
    Date of Patent: July 17, 1984
    Assignee: Alan K. Roberts
    Inventor: Miguel H. Esnard
  • Patent number: 4443939
    Abstract: A flexible razor blade cartridge having an expansible cap plus a blade support composed of a plurality of contiguous sinews or ribbons of flexible plastic material defining a sinuous, convoluted, cage-like structure including an integral segmental flexible guard bar and means for releasably securing the cartridge to a handle.
    Type: Grant
    Filed: April 30, 1982
    Date of Patent: April 24, 1984
    Assignee: Warner-Lambert Company
    Inventors: Vincent C. Motta, Ernest F. Kiraly
  • Patent number: 4346517
    Abstract: This invention pertains to a mustache trimmer have a 360.degree. circular cutting edge. The trimmer comprises an annular holder and an annular razor blade telescoped into said holder with the cutting edge of the razor blade exposed.
    Type: Grant
    Filed: October 15, 1980
    Date of Patent: August 31, 1982
    Inventor: Robert A. Cianflone
  • Patent number: 4336651
    Abstract: A circular razor assembly having replaceable annular blades and apparatus for adjusting the positions of the blades whereby the user can control the depth of the cut of hair or beard. Cleaning openings are also associated with the blades to provide for easy cleaning of the razor.
    Type: Grant
    Filed: May 21, 1980
    Date of Patent: June 29, 1982
    Inventor: Israel Caro
  • Patent number: 4208791
    Abstract: An arcuate razor head is shaped to conform to convex and concave body surfaces. Cutting edges are emplaced in inclined arcuate surfaces, one above the other. The inclined surfaces guide the cutting edges at an efficient cutting angle as the razor head is drawn over the surface of the body being shaved. The inclined surfaces intersect in a line removed from the location of the cutting edges. Both convex and concave arcuate cutting edges are immediately available to the user.
    Type: Grant
    Filed: February 1, 1979
    Date of Patent: June 24, 1980
    Inventor: Barbara J. Van Cleve
  • Patent number: 4103418
    Abstract: A manually-operated shaving device, for shaving skin areas during or incidental to surgical or cosmetic treatment. The device comprises a generally wheel-shaped shaving body, the rim of which carries a plurality of shaving edges. A handle means is rigidly secured to the wheel and extends outwardly in alignment with the wheel axis, to thereby enable oscillating clockwise and counterclockwise rotation of the wheel by operator manipulation of the handle means. A support member is secured to the side of the wheel opposite the handle means, and extends a short distance from the wheel in alignment with the said wheel axis. The member includes a smooth concavity at its distal end for receiving the finger tip of the hand of the operator which is opposed to that manipulating the handle means. The contacting finger serves as a pivotal support during rotation and orientation of the shaving body with respect to the skin area being treated.
    Type: Grant
    Filed: July 26, 1977
    Date of Patent: August 1, 1978
    Inventor: Marcial Alvarez